Home / 158,603.24-218,884.05-90,618.75

Finding the Fourth Proportional to 158,603.24, 218,884.05 and 90,618.75

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Solution

The fourth proportional to 158,603.24, 218,884.05 and 90,618.75 is: 125,060.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,603.24 : 218,884.05 = 90,618.75 : x
  2. Step 2: Convert to fraction form
    158,603.24/218,884.05 = 90,618.75/x
  3. Step 3: Cross multiply
    158,603.24x = 218,884.05 × 90,618.75
  4. Step 4: Simplify right side
    158,603.24x = 19,834,999,005.94
  5. Step 5: Solve for x
    x = 19,834,999,005.94/158,603.24
  6. Step 6: Final answer
    x = 125,060.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.